Full list of all 50 Splatterhouse achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.
Unlock all skills.
Get 50 kills with enemy heads.
Get 100 kills with Splatter Smash.
Accomplish 5 Secret Missions in a single Survival Arena attempt.
Unlock 50% of Dr. West's journal.
Get 300 kills in Berserker Mode.
Splat 200 enemies on a wall with a weapon.
Complete the game on "Savage" difficulty (or harder).
Complete the game on any difficulty.
Complete Phase 10: The Wicker Bride.
Perform 150 Splatterkills.
Get 100 kills with Splatter Slash.
Listen to all of Dr. West's gramophone records.
Get 2000 or more BLOOD Points in one chain of attacks.
Complete Phase 8: Reflections in Blood.
Get 150 kills with enemy arms.
Kill an enemy with Splatter Smash.
Unlock 25% of Dr. West's journal.
Complete Phase 6: Beast with a Human Heart.
Unlock 25 skills.
Kill an enemy with a Splatter Slash.
Complete Phase 4: The Meat Factory.
Splat 100 enemies on a wall with a weapon.
Get 500 kills with non-fleshy weapons.
Stomp on 1000 Boreworms.
Perform 75 Splatterkills.
Complete Phase 2: The Doll that Bled.
Re-assemble one of Jen's sexy photos.
Kill an enemy with an enemy's head.
Impale an enemy on a spike.
Unlock 5% of Dr. West's journal.
Purchase a skill.
Kill an enemy with an enemy's arm.
Kill 6 enemies within one second.
Kill an enemy with your own dismembered arm.
Get 50 kills with non-fleshy weapons.
Splat an enemy on a wall with a weapon.
Regenerate with Splatter Siphon.
Perform a Splatterkill.
Complete the game on "Brutal" Difficulty.
Tackle an enemy and pummel it 20 times.
Kill 6 enemies in one ram attack.
Launch an enemy straight up with "No Head Room".
Get an S-rank in Survival Arena mode.
Get three S-ranks in Survival Arena mode.
Get six S-ranks in Survival Arena mode.
Accomplish all 10 Secret Missions in a single Survival Arena attempt.
Unlock all pages of Dr. West's journal.
Re-assemble 8 of Jen's photos.
Re-assemble all of Jen's photos.